If m1 = 110°, an arc with a measure of 250°.
BC
BCA
CTA

Answer:
The correct option is 2.
Step-by-step explanation:
Given information: [tex]m\angle 1=110^{\circ}[/tex].
It is given that [tex]m\angle 1=110^{\circ}[/tex], so arc(BA)=110° and the central angle of arc BCA is
[tex]Arc(BCA)=360^{\circ}-Arc(BA)[/tex]
[tex]Arc(BCA)=360^{\circ}-110^{\circ}[/tex]
[tex]Arc(BCA)=250^{\circ}[/tex]
The measure of arc BC is
[tex]180^{\circ}-110^{\circ}=70^{\circ}[/tex]
The measure of arc CTA is 180° because AC is the diameter.
It means options 1 and 3 are incorrect.
The measure of arc BCA is 250°. Therefore the correct option is 2.